High-density-difference solution mixing system
By introducing equipment such as flow meter and regulating valve into the mixing system, combined with the return pipeline and density meter, precise proportional control of high-concentration and low-concentration solutions is achieved, solving the problem of large density differences in liquids with poor mixing effects, and improving mixing accuracy and safety.
Patent Information
- Application Number
- CN202422135097.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-02
AI Technical Summary
When mixing ammonia and multi-effect organic amine solutions with large density differences, the mixing effect of existing mixing equipment has poor equipment wear and pipeline blockage.
High-concentration solution storage tank, low-concentration solution storage tank, conveying pump, flowmeter, regulating valve and high-efficiency mixer are used to control the liquid flow through the flowmeter and regulating valve to ensure that the two liquids enter the mixer in proportion, and the mixing ratio is adjusted in real time with the return pipeline and density meter to achieve accurate control.
It improves the liquid mixing effect, reduces the risk of equipment wear and pipe blockage, ensures safety and mixing accuracy, and avoids the uneven mixing problem caused by large-scale addition of liquids at one time.
Smart Images
Figure CN223112985U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the chemical industry field, and particularly relates to a high-density difference solution mixing system. Background Art
[0002] In the process of chemical production, the main supply of heat source comes from the self-provided power plant. Usually, before the flue gas of the power plant boiler undergoes denitrification, ammonia water or liquid ammonia is often used as a reducing agent. However, due to the low efficiency of ammonia water in the denitrification process, some enterprises have started to use multi-effect organic amines as substitutes. This reducing agent can significantly improve the denitrification efficiency. The multi-effect organic amine not only has no pungent smell, but is also more convenient for transportation and storage. However, considering its high price, general chemical plants tend to mix ammonia water and multi-effect organic amine solutions to maintain the denitrification efficiency while reducing costs.
[0003] In order to mix the above-mentioned ammonia water and multi-effect organic amine solutions, some enterprises have adopted static mixers. However, since the concentration of ammonia water is about 0.9 mol / L and the concentration of organic amine solution is about 1.1 mol / L, the density difference between the two is relatively large. When the addition amounts of the two liquids are relatively large, it will exacerbate the uneven flow and mixing phenomenon, resulting in poor mixing effect of the two liquids, and at the same time increasing the risk of equipment wear and pipeline blockage. Content of the Utility Model
[0004] The utility model aims to provide a high-density difference solution mixing system to solve the problem that the current mixing equipment has a poor mixing effect when mixing liquids with a large density difference.
[0005] To achieve the above object, the utility model adopts the following technical scheme: A high-density difference solution mixing system, comprising: a high-concentration solution storage tank, a low-concentration solution storage tank, a delivery pump, a flowmeter, and a high-efficiency mixer. The high-concentration solution storage tank is communicated with the high-efficiency mixer through a high-concentration liquid pipe. The low-concentration solution storage tank is communicated with the high-efficiency mixer through a low-concentration liquid pipe. Delivery pumps, flowmeters, and regulating valves are provided on both the high-concentration liquid pipe and the low-concentration liquid pipe. The regulating valve is located between the flowmeter and the high-efficiency mixer, and the regulating valve is used to control the liquid flow between the high-concentration liquid pipe and the high-efficiency mixer and the liquid flow between the low-concentration liquid pipe and the high-efficiency mixer.
[0006] The principle of this scheme: When it is necessary to mix two liquids with different densities, the delivery pump pumps the high-concentration liquid and the low-concentration liquid into the corresponding pipelines. The flowmeter real-time monitors the liquid flow in the corresponding pipelines. The liquid sequentially passes through the delivery pump, the flowmeter, and the regulating valve and enters the high-efficiency mixer. The regulating valve is controlled in a timely manner through the flowmeter data, thereby controlling the mixing ratio of the two liquids.
[0007] Advantages of this solution: In this solution, two liquids are continuously and quantitatively added to the high-efficiency mixer through devices such as flow meters and regulating valves, avoiding excessive addition of liquids during mixing. The liquids are added and mixed continuously in relatively small amounts, resulting in better mixing effects when the liquid densities differ significantly. At the same time, the flow meter and regulating valve also facilitate the control of the liquid addition amount, with more precise proportional control and better liquid mixing effects. The entire system is enclosed, minimizing the contact between operators and the liquids to be stirred, ensuring high safety.
[0008] Preferably, the transfer pump is located between the flow meter and the high-concentration solution storage tank or between the flow meter and the low-concentration solution storage tank.
[0009] Preferably, it further includes a reflux pipe. One end of the reflux pipe is connected to the high-concentration liquid pipe or the low-concentration liquid pipe between the transfer pump and the flow meter, and the other end of the reflux pipe is connected to the high-concentration solution storage tank or the low-concentration solution storage tank. A control valve is provided on the reflux pipe. By setting up the reflux pipeline, the liquids in the high-concentration liquid pipe and the low-concentration liquid pipe can flow back to the corresponding storage tanks, without affecting the next liquid mixing operation.
[0010] Preferably, the connection of the reflux pipe to the high-concentration solution storage tank is located at the bottom of the high-concentration solution storage tank, and the connection of the reflux pipe to the low-concentration solution storage tank is located at the bottom of the low-concentration solution storage tank.
[0011] Preferably, the high-efficiency mixer is provided with a high-concentration liquid inlet and a low-concentration liquid inlet. The high-concentration liquid pipe is connected to the high-concentration liquid inlet, and the low-concentration liquid pipe is connected to the low-concentration liquid inlet. By setting two liquid inlets, it is convenient to control the liquid mixing ratio, which can not only ensure the mixing effect but also achieve precise regulation according to the changes in the solution.
[0012] Preferably, the high-concentration liquid inlet is located above the low-concentration liquid inlet. In this way, after the two liquids are added to the high-efficiency mixer, the liquid with a larger density will flow downward, and the liquid with a smaller density will flow upward, which can enhance the mixing effect of the two liquids.
[0013] Preferably, the high-concentration liquid inlet and the low-concentration liquid inlet are symmetrically arranged along the axis of the high-efficiency mixer.
[0014] Preferably, density meters are provided on both the high-concentration liquid pipe and the low-concentration liquid pipe. The density meters are used to measure the densities of the solutions in the high-concentration liquid pipe and the low-concentration liquid pipe. Density meters are designed to measure the densities of the two liquids and adjust the liquid mixing ratio in a timely manner.
[0015] Preferably, the density meters are located between the transfer pump and the flow meter. Description of the Drawings
[0016] Figure 1This is a schematic structural diagram of an embodiment of the present utility model. Detailed implementation manners
[0017] The following is a further detailed description through specific implementation manners:
[0018] The reference numerals in the accompanying drawings of the specification include: high-concentration solution storage tank 1, low-concentration solution storage tank 2, transfer pump 3, densitometer 4, flowmeter 5, regulating valve 6, and high-efficiency mixer 7.
[0019] Embodiment:
[0020] A high-density difference solution mixing system, as shown in the accompanying Figure 1 drawing, includes: a high-concentration solution storage tank 1, a low-concentration solution storage tank 2, a transfer pump 3, a flowmeter 5, and a high-efficiency mixer 7. Among them, the high-concentration solution storage tank 1 and the low-concentration solution storage tank 2 have the same structure.
[0021] The high-concentration solution storage tank 1 is communicated with the high-efficiency mixer 7 through a high-concentration liquid pipe, and the low-concentration solution storage tank 2 is communicated with the high-efficiency mixer 7 through a low-concentration liquid pipe. The whole system is closed and has high safety.
[0022] Transfer pumps 3, flowmeters 5, and regulating valves 6 are provided on both the high-concentration liquid pipe and the low-concentration liquid pipe. The regulating valve 6 is located between the flowmeter 5 and the high-efficiency mixer 7. The regulating valve 6 is used to control the liquid flow between the high-concentration liquid pipe and the high-efficiency mixer 7 and the liquid flow between the low-concentration liquid pipe and the high-efficiency mixer 7. The transfer pump 3 is used to pump the liquid in the high-concentration solution storage tank 1 and the liquid in the low-concentration solution storage tank 2 into the high-concentration liquid pipe and the low-concentration liquid pipe. The transfer pump 3 is located between the flowmeter 5 and the high-concentration solution storage tank 1 or between the flowmeter 5 and the low-concentration solution storage tank 2. The flowmeter 5 is used to measure the liquid flow in the high-concentration liquid pipe and the low-concentration liquid pipe. The cumulative added liquid volume within this time can be obtained through the data of the flowmeter 5 and time. It is also convenient to control the liquid addition amount through the flowmeter 5 and the regulating valve 6. The proportional control is more accurate and the liquid mixing effect is better.
[0023] Among them, densitometers 4 are provided on both the high-concentration liquid pipe and the low-concentration liquid pipe. The densitometer 4 is used to measure the density of the solution in the high-concentration liquid pipe and the low-concentration liquid pipe. The densitometer 4 is located between the transfer pump 3 and the flowmeter 5. The densitometer 4 is designed to measure the density of the two liquids and adjust the liquid mixing ratio in a timely manner.
[0024] The high-efficiency mixer 7 is provided with a high-concentration liquid inlet and a low-concentration liquid inlet. The high-concentration liquid pipe is communicated with the high-concentration liquid inlet, and the low-concentration liquid pipe is communicated with the low-concentration liquid inlet. By setting two liquid inlets, it is convenient to control the liquid mixing ratio, which can not only ensure the mixing effect but also achieve precise regulation according to the changes in the solution.
[0025] The high-concentration liquid inlet and the low-concentration liquid inlet are symmetrically arranged along the axis of the high-efficiency mixer 7. The high-concentration liquid inlet is located above the low-concentration liquid inlet. After the two liquids are added to the high-efficiency mixer 7, the liquid with a larger density will flow downward, and the liquid with a smaller density will flow upward, which can enhance the mixing effect of the two liquids. The high-efficiency mixer 7 includes a mixing pipe body. In the mixing pipe body, guide plates are provided in pairs and fixed on the inner wall of the mixing pipe body. The paired guide plates divide the mixing pipe body into a liquid inlet chamber, a strong mixing chamber, and a liquid outlet chamber in sequence. Among them, after the liquid enters the liquid inlet chamber, it enters the strong mixing chamber along the guide holes on the first guide plate, and then the liquid enters the liquid outlet chamber along the guide holes on the second guide plate. A stirring mechanism is provided in the strong mixing chamber and the liquid outlet chamber to mix the liquid. The stirring mechanism is a prior art.
[0026] It also includes a reflux pipe. One end of the reflux pipe is connected to the high-concentration liquid pipe between the delivery pump 3 and the flow meter 5 or the low-concentration liquid pipe between the delivery pump 3 and the flow meter 5, and the other end of the reflux pipe is connected to the high-concentration solution storage tank 1 or the low-concentration solution storage tank 2. A control valve is provided on the reflux pipe. By setting the reflux pipeline, the liquid in the high-concentration liquid pipe and the low-concentration liquid pipe can flow back to the corresponding storage tanks, without affecting the next liquid mixing operation.
[0027] The connection point of the reflux pipe with the high-concentration solution storage tank 1 is located at the bottom of the high-concentration solution storage tank 1, and the connection point of the reflux pipe with the low-concentration solution storage tank 2 is located at the bottom of the low-concentration solution storage tank 2.
[0028] It also includes a control module and a control system. The control module is used to control the operation of the high-efficiency mixer. The control system is integrated in the upper computer. Through the control system, the operation of the delivery pump 3, the regulating valve 6, and the control valve is controlled to control the mixing ratio of the two liquids and make the excess liquid in the pipeline flow back to the corresponding storage tanks through the reflux pipeline.
[0029] The specific implementation process is as follows:
[0030] When it is necessary to mix two liquids with different densities, the delivery pump 3 pumps the high-concentration liquid and the low-concentration liquid into the corresponding pipelines. The flow meter 5 monitors the flow rate of the liquid in the corresponding pipeline in real time, and the density meter 4 monitors the density of the liquid in real time. The ratio of the two liquids is controlled according to the data of the seal meter, and then the regulating valve 6 is controlled in time according to the data of the flow meter 5 to control the flow rate of the two liquids, and further control the actual mixing ratio of the liquids. The liquids in the high-concentration solution storage tank 1 and the low-concentration solution storage tank 2 all pass through the delivery pump 3, the flow meter 5, and the regulating valve 6 and enter the high-efficiency mixer 7 in sequence. The high-concentration liquid controls the regulating valve 6 in time through the data of the flow meter 5, and further controls the mixing ratio of the two liquids.
[0031] The overall system of this solution is closed, minimizing the contact between operators and the liquid to be stirred as much as possible, with high safety. It is also convenient to control the liquid addition amount through the flowmeter 5 and the regulating valve 6, with more precise proportional control and better liquid mixing effect. By continuously adding two liquids to the high-efficiency mixer 7 quantitatively through devices such as the flowmeter 5 and the regulating valve 6, the problem of poor mixing effect caused by adding too much liquid to the mixer at one time can be avoided. Through continuous addition and mixing of a relatively small amount of liquid, a continuous mixing flow is formed, making the mixing effect of liquids with a large density difference better.
[0032] The above are only embodiments of the present utility model. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present utility model, several modifications and improvements can be made. In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.
Claims
1. A high-density differential solution mixing system, characterized in that, Including: A high-concentration solution storage tank, a low-concentration solution storage tank, a transfer pump, a flow meter, and a high-efficiency mixer. The high-concentration solution storage tank is connected to the high-efficiency mixer through a high-concentration liquid pipe. The low-concentration solution storage tank is connected to the high-efficiency mixer through a low-concentration liquid pipe. A transfer pump, a flow meter, and a regulating valve are provided on both the high-concentration liquid pipe and the low-concentration liquid pipe. The regulating valve is located between the flow meter and the high-efficiency mixer. The regulating valve is used to control the liquid flow between the high-concentration liquid pipe and the high-efficiency mixer and the liquid flow between the low-concentration liquid pipe and the high-efficiency mixer.
2. The high-density differential solution mixing system according to claim 1, characterized in that: The transfer pump is located between the flow meter and the high-concentration solution storage tank or between the flow meter and the low-concentration solution storage tank.
3. The high-density differential solution mixing system according to claim 2, wherein: It further includes a reflux pipe. One end of the reflux pipe is connected to the high-concentration liquid pipe between the transfer pump and the flow meter or the low-concentration liquid pipe between the transfer pump and the flow meter. The other end of the reflux pipe is connected to the high-concentration solution storage tank or the low-concentration solution storage tank. A control valve is provided on the reflux pipe.
4. A high-density differential solution mixing system according to claim 3, characterized in that: The connection point of the reflux pipe and the high-concentration solution storage tank is located at the bottom of the high-concentration solution storage tank. The connection point of the reflux pipe and the low-concentration solution storage tank is located at the bottom of the low-concentration solution storage tank.
5. A high-density difference solution mixing system according to claim 1, characterized in that: The high-efficiency mixer is provided with a high-concentration liquid inlet and a low-concentration liquid inlet. The high-concentration liquid pipe is connected to the high-concentration liquid inlet. The low-concentration liquid pipe is connected to the low-concentration liquid inlet.
6. The high-density differential solution mixing system according to claim 5, characterized in that: The high-concentration liquid inlet is located above the low-concentration liquid inlet.
7. A high-density difference solution mixing system according to claim 6, characterized in that: The high-concentration liquid inlet and the low-concentration liquid inlet are symmetrically arranged along the axis of the high-efficiency mixer.
8. A high-density differential solution mixing system according to claim 1, characterized in that: Density meters are provided on both the high-concentration liquid pipe and the low-concentration liquid pipe. The density meters are used to measure the density of the solutions in the high-concentration liquid pipe and the low-concentration liquid pipe.
9. The high-density differential solution mixing system according to claim 8, wherein: The density meters are located between the transfer pump and the flow meter.